UV Wrapping and Baking into UE4 Steps?

Thank you so much,

Is SSS the effect that is achieved when light hits areas where the blood is closer to the skin(Gets redder in hue)
and where there is more fat(Gets bluer/cool gray)

Does Substance and have the ability to do the SSS in a game?


Also I will use Substance for skin by looking at the tutorials,

I will also use the file to try and import into UE4 and see what happens for myself.(See if I can learn anything from his workflow in and apply it to Substance or vice versa)